The Michael Castle trail is a mostly paved multi-use trail running along the Chesapeake and Delaware Canal between the Maryland state line and Fort Delaware State Park in Delaware City, DE. It features excellent views of the canal and marshlands and woods along the canal and the historic areas along Canal Street in Delaware City, ending with views of the Delaware River from the state park. As of September 2016 there is still one short section, about 3/4 mile, near the US 301 bridge, that is not yet paved. Here the surface is packed gravel and it appears that the section is being prepared for paving.

There are several trailhead parking areas currently open and one that is completed near Lum's Pond that is constructed but wasn't open as of September 11, 2016. The others are street parking in Delaware City, off Main Street in Georgetown, and Biddle Point. All are paved parking with information kiosk and restrooms.